רָבַב
From LSJ
τίς ἐς σὸν κρᾶτ' ἐπύκτευσεν → who hit you with the fist on the head, who has been pummeling your head
English (Strong)
a primitive root (rather identical with רָבַב through the idea of projection); to shoot an arrow: shoot.
a primitive root; properly, to cast together (compare רְבִיבִים), i.e. increase, especially in number; also (as denominative from רְבָבָה) to multiply by the myriad: increase, be many(-ifold), be more, multiply, ten thousands.